Lisp code shouldn't use set-time-zone-rule except through setenv.

* time.el (display-time-world-list, display-time-world-display):
* time-stamp.el (time-stamp-string):
* vc/add-log.el (add-change-log-entry): Use setenv instead of
set-time-zone-rule.

* src/editfns.c (Fset_time_zone_rule): Document relationship with the
setenv function.

Fixes: debbugs:7337

1 files changed, 3 insertions, 0 deletions

diff --git a/src/ChangeLog b/src/ChangeLog
index 4df4455e862..cbe2d8659b2 100644
--- a/src/ChangeLog
+++ b/src/ChangeLog
@@ -1,5 +1,8 @@
 2011-08-08  Chong Yidong  <cyd@stupidchicken.com>
 
+        * editfns.c (Fset_time_zone_rule): Document relationship with the
+        setenv function.
+
         * ftfont.c (ftfont_pattern_entity): Copy the extras argument to
         the font entity extracted from the cache (Bug#8109).